diff --git a/.github/workflows/auto-update-copyright.yml b/.github/workflows/auto-update-copyright.yml
index c29391b..9cf1c44 100644
--- a/.github/workflows/auto-update-copyright.yml
+++ b/.github/workflows/auto-update-copyright.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set up Python
       uses: actions/setup-python@v4